12 Days of Christmas
418
99 Bottles of Beer
502
Abundant Numbers
656
Christmas Trees
555
CSS Colors
78
Divisors
675
Emirp Numbers
297
Evil Numbers
492
Fibonacci
578
Fizz Buzz
780
Foo Fizz Buzz Bar
697
Leap Years
542
Look and Say
317
Niven Numbers
492
Prime Numbers
485
Prime Numbers (Long)
491
Quine
505
Rock-paper-scissors-Spock-lizard
437
Spelling Numbers
236
Tongue-twisters
405
United States
128
π
447